What are the elements of physical weathering?

Question

Explain how each element is involved in the weathering cycle.

Answer 1

The elements of weathering and their effects are as follows:

1. Sun: It heats up the surface of rocks and then they again cool off in the night.This alternate heating and cooling disintegrates the rocks and weathers them.

2. Water: There is a saying that "still water runs deep".It essentially goes on to state that water slowly but gradually cuts and weathers rocks by physical action,chemical leaching and gradual penetration and expansion when frozen.

3. Wind: It beats down on rocks and takes off their top covers gradually exposing their underlying layers to further erosion.

4.Plants: Hardy plants like banyan,peepal,lichens, moss etc thrive on rocks and slowly weather them by chemical and physical action.

5. Animals:Animals by their day to movement and actions tend to erode the top layers of rocks e.g. the big migration of wilderbeest across the serengti consists 1 million animals trudging across will definitely have some impact over the rocks in the way.

Some other factors can be man made fires,temperature fluctuations,rain etc but basically their explanation is the same as one of the above given.

Answer 2

hi
1- Co2 & H2O
Co2 + H2O ----------------------> HCO3 + H
HcO3 role as a solvent to resolve the rocks and reliseing elementes
2- wind : erosion the soil , wind tranfer rocks , soil
3- water : when water become ice between the small hole in the rocks it generate a high or big force and preesure , that effect of destroiding the rocks to small particule
floods of water destroide every thinf and transfer
4- human activity : making building , street , tunel , factory ....etc


thanks

Answer 3

the heat from the sun and therefore, FIRE, causes the WATER, which binds and strengthens the EARTH, to evaporate, finally, the energy from the WIND causes the earth to gradually disintegrate

Answer 4

check this link out

http://grunwald.ifas.ufl.edu/Nat_resources/weathering/weathering.htm

Answer 5

Carlene W is correct (obviously). I still wonder if cut & paste is "your answer" or plagarism.